ASTM A213 TP316L Stainless Steel Heat Exchanger Tube
Grade;TP316L (UNS S31603)
Tube Type;Seamless Heat Exchanger Tube
OD;6.35–127 mm (1/4"–5"), custom sizes available
WT;0.4–12.7 mm
Length;3 m, 6 m, 12 m, U-Bend Tube or Customized
Surface Finish;Annealed & Pickled (AP), Bright Annealed (BA)
Ends;Plain End (PE), Beveled End (BE)
Delivery Condition;Solution Annealed, Pickled, Cold Drawn
Heat Treatment;Solution Annealed ≥1040°C, Water Quenched
Tube Form;Straight Tube, U Tube, Coil Tube (Optional)
Packing ;Plastic Caps, Bundles, Wooden Cases, Export Seaworthy Packing
ASTM A213 TP316L SS Tube Supplier, Manufacturer, Exporter, Stockist
GNEE boasts over 18 years of manufacturing experience in stainless steel heat exchanger tubes, having supplied stainless steel tubing to clients in more than 80 countries worldwide. Our products serve diverse sectors including petrochemicals, power generation, food processing, marine engineering, pharmaceuticals, and heat transfer equipment manufacturing. Our production facilities operate in strict accordance with the ISO 9001 quality management system. For every batch of ASTM A213 TP316L stainless steel heat exchanger tubes, we provide EN 10204 3.1/3.2 Material Test Certificates (MTC), ensuring full traceability from raw materials to finished products.
The ASTM A213 TP316L stainless steel tubes we supply are cold-drawn seamless stainless steel heat exchanger tubes specifically designed for high-temperature and high-pressure service conditions. Containing 2%–3% molybdenum (Mo) with a low carbon content (≤0.035%), this grade delivers exceptional resistance to pitting, crevice corrosion, and chloride-induced corrosion, while ensuring excellent weldability and long-term operating reliability in severe environments. Unlike welded tubing, the seamless manufacturing process eliminates the weld seam, thereby significantly reducing the risks of leakage, stress concentration, and corrosion in the weld zone.
Additionally, all 316L SS tubes undergo a high-temperature solution annealing process at temperatures exceeding 1040°C followed by rapid cooling. This effectively eliminates internal processing stresses, stabilizes the austenitic structure, and reliably maintains the tube hardness below 95 HRB, making them perfectly suited for subsequent bending and tube expanding processes.
To satisfy diverse heat exchanger design requirements, GNEE offers ASTM A213 TP316L tubes in multiple configurations, including straight tubes, U-bend tubes, and seamless coiled tubing, with full customization support for outer diameter, wall thickness, length, bending radius, and surface finish. 316L U-bend tubes reduce internal welded joints in shell-and-tube heat exchangers, thereby enhancing thermal efficiency and minimizing potential leak points. Meanwhile, 316L seamless coiled tubing stands as the ideal choice for compact heat exchangers, condensers, instrumentation systems, and continuous processing equipment.
specification
| Item | Specification |
|---|---|
| Standard | ASTM A213 / ASME SA213 |
| Grade | TP316L (UNS S31603) |
| Material | Austenitic Stainless Steel |
| Outside Diameter (OD) | 6.35–127 mm (1/4"–5"), custom sizes available |
| Wall Thickness (WT) | 0.4–12.7 mm |
| Length | 3 m, 6 m, 12 m, U-Bend Tube or Customized |
| Surface Finish | Annealed & Pickled (AP), Bright Annealed (BA), Polished |
| Ends | Plain End (PE), Beveled End (BE) |
| Delivery Condition | Solution Annealed, Pickled, Cold Drawn |
| Heat Treatment | Solution Annealed ≥1040°C, Water Quenched |
| Tube Form | Straight Tube, U Tube, Coil Tube (Optional) |
| Packing | Plastic Caps, Bundles, Wooden Cases, Export Seaworthy Packing |
| Inspection | 100% PMI, Eddy Current Test (ET), Hydrostatic Test (HT), Ultrasonic Test (UT), Air Under Water Test (Optional) |
| Certification | EN 10204 3.1 / 3.2, ISO 9001, SGS, BV, TUV |
Chemical Composition:
| Grade | UNS | C | Mn | P | S | Si | Cr | Ni | Mo |
| TP316L | S31603 | 0.035 max | 2.00 max | 0.045 max | 0.03 max | 1.00 max | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
Mechanical Properties:
| Grade | Tensile Strength, min, ksi (MPa) |
Yield Strength, |
Elongation in 2 in. |
Hardness |
Solutioning Temperature, |
|
| Rockwell | Brinell/Vickers | |||||
| TP316L | 70(485) | 25(170) | 35 | 90HRB | 192HBW/200HV | 1900(1040) |
Specification Tolerance For ASTM A213 TP316L Seamless Tube
| Sizes | Sizes | Sizes | Standard Tolerances | Tolerances | Tolerances | ||
| Products | OD | Wall | Lengths and/or coils | Grades | OD | Wall | Lengths |
| Seamless Austenitic Steel Boiler, Superheater, Heat Exchanger Tube & Condenser Tubes Specifications: ASTM A213, ASME-SA213, ASTM-A688, ASME-SA688, ASTM A312, ASME SA 312 |
0.5″ (6 mm) to 12 " (323.85 mm)Metric sizes available | 0.020″ (0.51 mm) to 1.312 " (33.325 mm) | Random or cut lengths to Customer Requirement | 316/316L | Under 1″ (25.4 mm) ±0.004″ (0.10 mm)1″ (25.4 mm) to 1-1/2″ (38.1 mm) ±0.006″ (0.15 mm)>1-1/2″ (38.1 mm) to 2″ (50.8 mm) ±0.008″ (0.20 mm)>2″ (50.8 mm) to 2-1/2″ (63.5 mm) ±0.010″ (0.25 mm)>2-1/2″ (63.5 mm) to 3″ (76.2 mm) ±0.012″ (0.30 mm)3″ (76.2 mm) to 4″ (101.6 mm) ±0.015″ (0.38 mm) | ±10% | Randoms up to +2″ (50.8 mm)Cuts +1/8″ (3 mm) -0″Coils to 80,000′ (24,384 m) |
Click to download the ASTM A213 TP316L steel pipe PDF datasheet.
ASTM A213.PDF
Applications of TP316L Seamless Heat Exchanger Tubes
Chemical and petrochemical processing: Used in condensers, critical reactors, and process piping to handle corrosive acids, solvents, and high-pressure fluids.
Oil and gas industry: Applied in offshore platforms and natural gas processing facilities.
Power generation industry: Installed in power plant condensers, nuclear heat recovery systems, and steam systems.
If you have project requirements for 316L stainless steel pipes, we welcome your orders. GNEE maintains a large inventory of popular products for you to choose from. Please contact our factory today; we offer competitive prices and excellent service.
inspection
Each steel tube undergoes 100% PMI (Positive Material Identification), chemical composition analysis, mechanical properties testing, eddy current or hydrostatic testing, dimensional inspection, and visual examination prior to shipment. Every order batch is accompanied by an EN 10204 3.1 Material Test Certificate (MTC), and third-party inspection services from SGS, BV, or TUV can be provided upon customer request.
high quality packaging
Packaged in bundles or plywood crates, wrapped in plastic, and provided with appropriate protective measures to ensure suitability for seaworthy transport, or packed according to specific requirements.
Marking shall comply with the provisions of Specification A1016/A1016M and indicate whether the pipe is hot-worked or cold-worked; markings shall include, but are not limited to: standard, grade, size, heat number, and lot number.
Customer Feedback
"The TP316L tubing has excellent dimensional consistency, and the welding and expansion processes were smooth, fully meeting our requirements for heat exchanger tubes. The complete hydrostatic test reports and material certificates helped us successfully pass third-party inspections." - Technical Manager, Heat Exchanger Manufacturer
FAQ
Q. What is the difference between ASTM A213 TP316L and TP316?
A: TP316L has a maximum carbon content of 0.030%, whereas TP316 has a maximum of 0.08%. Low carbon content effectively prevents "carbide precipitation" during welding, thereby avoiding intergranular corrosion in the weld zone. Although 316L offers better weldability, its room-temperature strength is slightly lower than that of 316.
Q. Can A213 TP316L be used for U-bend tubes?
A: Yes. We frequently process A213 straight tubes into U-bend tubes. Forming the bend creates processing stresses in the radius (R-bend) area. Depending on project requirements (such as ASME B16.5), the deformed section of the U-bend typically requires additional stress-relief annealing, followed by 100% hydrostatic testing or a ball-passage test.
Q. Does A213 TP316L offer any cost advantages over A249 TP316L?
A: In fact, A213 (seamless) is more expensive than A249 (welded). A213 seamless tubes have no weld seams, offering greater safety in high-pressure environments (> 5 MPa) and eliminating the need to consider a weld joint efficiency factor; consequently, they are mandatory in high-risk industries such as oil and gas.
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